Which shape must have opposite sides that are parallel and congruent, and diagonals that are perpendicular

Last year, main bike d miles. this year, she biked 533 miles. using d, write an expression for the total number of miles she biked

Tickets for the homecoming dance cost $20 for a single ticket or $35 for a couple. ticket sales totaled $2280, and 128 people attended. how many tickets of each type were sold?

The difference between two numbers is 31. Four times the smaller is equal to 8 more than the larger. What are the numbers?

1/4 : 3/8 in simplest form

Jackie sold 48 pints of lemonade at her stand. How many quarts of lemonade did she sell? (1 quart = 2 pints)

If the mean of the following distribution is 91 and sum of frequencies is 150 find x and y

Find the value of the spring constant for the spring in trial i. use 0.367 s for the value of the period. the mass of the suspended block is 0.400 kg. enter your answer in n/m with three significant figures.

5 + 3x = - 1 + 6 (6x + 1)

If you see a triangle that has a small box in one angle, what type of triangle is it?

There are t teams in a soccer league. each team consists of 11 players. write an equation to find how many players p are in the league